Animals that can be divided into right and left halves and dorsal and ventral halves are said to exhibit which of the following?Multiple choice question.A radially symmetrical body planAn unsegmented body planA segmented body planA bilaterally symmetrical body plan
Question
Animals that can be divided into right and left halves and dorsal and ventral halves are said to exhibit which of the following?Multiple choice question.A radially symmetrical body planAn unsegmented body planA segmented body planA bilaterally symmetrical body plan
Solution
The correct answer is D. A bilaterally symmetrical body plan.
This is because bilateral symmetry involves the division of the animal through a sagittal plane, resulting in two mirror-image, right and left halves. Similarly, these animals can also be divided into dorsal (back) and ventral (belly) halves. Examples of animals with bilateral symmetry include humans, dogs, and birds.
In contrast, radial symmetry (option A) means that the animal can be divided into multiple similar parts arranged around a central axis, like slices of a pie. This is seen in animals like starfish or jellyfish.
An unsegmented body plan (option B) refers to animals that do not have bodies divided into segments, like snails or octopuses.
A segmented body plan (option C) refers to animals that have bodies divided into segments, like earthworms or lobsters.
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